Corrugated-metal culvert-pipe.



A. G; PELKER. I CORRUGATED METAL GULVERT PIPE. APPL'IOATION FILED DEG.29,1909.

954,673. Patented Apr. 12, 1910.

ALBERT GEO 31313333, 015 HABBHZFIELD, WISCONSIN.

OOIBBUGLTEDJCETAL OULVEBT-PIPE.

Specification of Letters Patent. Patnted Apr, 12, 1910 I Applicationfiled December 29, 1900. Serial No. 585,429.

To all whom it my cmwem:

Be it known that I, ALBERT G. Fnnnnn, a citizen of the United States,residing at Marshfield, in the county of Wood and State of Wisconsin,have invented a new and useful Corrn ated-Metnl Cohort-Pipe, of whichthe ollowing is a specification.

This invention relates to improvements in corrugated metal culverts andhas for its ob'ect the provision of a structure which wil provide asecure joint and in which the sections of the culvert may be readilyfitted and secured together and which will hold the sections of theculvert in perfect alinement. This object is attained in the use of thedevice illustrated in the accompanying drawings and the inventionconsists in certain novel features of the same as will be hereinafterfirst fully described and then specifically pointed out in the appendedclaims.

In the accompanying drawings,-Figure 1 is a side elevation of twosections of a culvcrt fitted together andembodying my invention, thecentral portions of the sections being broken away in order that thedrawin may more clearly illustrate the details of construction. Fig. 2is an enlarged detail section of a joint.

In carrying out my invention I construct the sections 1 and 2 of theculvert of sheet metal provided with annular corrugations 3, as shown,and these sections are formed at the ends in such manner as to readilyfit together so that the culvert may be made of any desired length andmay be assembled at the factory or at the place where it is to belocated, as may be more convenient. The sections are preferably arrangedso that the meeting longitudinal. edges 4 of one section will be at theside opposite the meeting edges of the adjoining section so that theculvert will be able to withstand the strains placed upon it. One end,which will be dcsi mated as the male end, of each section is ormed intoa fiat annular band or flange 5 which may be provided with suitableopenings (3 for the reception of securing bolt-s or rlvets 7 and at theinner edge of the said flange or band the body of the section is shapedto provide a sharp corrugation 8 whereby a radial shoulder or face 9will be presented. The opposite end of the section, which will bedesignated as the female end, is also provided with a sharp corrugation10 and the extremity of the said end is turned inward so as to present aradial shoulder 11 adapted to bear against the radial shoulder 9 on themale end of a. meeting section, as will be readily understood onreference to Fig. 2. In. order to secure the sections firmly togetherbolts 12 are inserted through the said corrugations 8 and 10 so as torigidly connect the some.

The construction of the parts of the culvert being thus made known, itis thought the advantages and manner of setting up the same will bereadily appreciated.

When the sections of the culvert are assembled at the factory the band 5of one section will be caused to enter the meeting end of the adjoiningsection so that the shoulder 9 will be brought squarely against theshoulder 11 and rivets are inserted through the openings 6 and the sideof the outer section and upset so that the sections will be heldtogether, the bolts 12 being subsequently inserted through thecorrugations 8 and 10 whereby the members of the joint will be doublysecured together and separation of the members of thejoint will bepositi vely prevented.

When the sections of the culvert are assembled at the point of use,ordinary bolts are used instead of the rivets inserted through theopenings 6 and in the very small sizes of pipes the fastcnin 's 7 may beomitted without detriment. fihe flat annular band 5 by entering the endof the meet-in section, serves to preserve the alincnient o the sectionsnotwithstanding the pressure which may he applied to the same when theculvert is in position and the provision of the narrower and moreextended corrugations 8 and 10 at the ends of the sections rescnts anextended bearing for the mem ers of the joint. so that thejoint will bestrengthened and the securing bolts may be readily inserted through thesame.

Having thus described my int-cation. what I claim is:

1. In a culvert, the combination of meeting sections, one section havinga smooth nunular band adapted to enter the end of the opposite sectionand the two sections being n'ovidcd with radial shoulders adapted tobear against each other.

2. The combination of moo-tin sections. the male section having asmoofii annular band and a radial shoulder at the inner edge ,of tbesaidband, and the female sectiop fit In testimony that I claim the foregoingas "tixgg'amund the nnnqlar band and hav1n a my own, I have heretoaflixud my mgxmhlm 1y, palshoulder bearmg against the ra iul in thepresence of two witnesses.

shoulder of the male section, securing bolts ALBERT GEO. FELKER. 5inserted through the said radial shoulders, Witnesses:

' and fasbenings inserted throu h the annular JOHN F. DOHEIITY,

band and the side of the femu e section. Oncmm VOLZ.

